830/CH3/EX3.2.6/Unit_Step_Sequence_Leftsided.sce


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//Graphical//
//Example 3.2.6
//Z transform of x[n] = u[-n]
clear;
clc;
close;
syms n z;
x=(1)^n
X=symsum(x*(z^(n)),n,0,%inf)
disp(X,"ans=")